Agronomy Quiz Questions and Answers
2024-2025.
"Roundup Ready" varieties of this forage crop have recently been deregulated and it
can now be planted again - a lawsuit led to its withdrawal after it had already been
released several years ago. This crop is: - ANSalfalfa
A common disease of wheat is leaf rust, which is caused by a fungus that does not
survive over winter in Kansas. However, the leaf rust spores blow in from the Southern
states each spring to infect our wheat crop. In this example, the wind is called the: -
ANSvector
A common disease of wheat is streak mosaic, which is caused by a virus that is
transferred from volunteer plants to newly planted seedlings by the wheat curl mite. In
this example, the wheat curl mite is called the: - ANSvector
A concern with regard to moldy corn at harvest is the potential presence of toxic levels
of: - ANSaflatoxin
A corn hybrid named Producers 5624VT3 contains YieldGard VT Triple technology,
which means that it has genetically engineered genes for resistance to:
a. Roundup herbicide
b. corn borers
c. corn rootworms
d. all of the abov - ANSd. all of the above
A crop consultant is calibrating a planter for sunflowers. He finds an average of 25
seeds dropped per 20 foot of row by one planter unit. The machine has 30-inch row
spacing. What is the seeding rate in seeds per acre? - ANS21,780.0 seeds/ac
A crop consultant is calibrating a row crop planter. He finds an average of 82 seeds
dropped per 50 foot of travel by one planter unit. The planter has 30-inch row spacing.
What is the seeding rate in seeds per acre? - ANS28,575 seeds/acre
A crop consultant is counting corn stands. He finds an average of 34 plants per 20 foot
length of row. The corn is planted in 30-inch rows. What is the plant population in plants
per acre? - ANS29,620 plants/acre
A crop consultant is evaluating an emergence problem in soybeans. He finds an
average of 95 seedlings emerged in 40-foot sections of row. The row width is 15-inches.
The farmer planted 140,000 seeds per acre.
a. Calculate the final emerged plant population in plants per acre.
,b. Calculate the percent emergence of the planted seeds. - ANSa. 82,764 plants/acre
b. 59% emergence
A crop consultant is evaluating an emergence problem in sunflowers. She finds an
average of 33 seedlings emerged in 50-foot sections of row. The row width is 24-inches.
The farmer planted 24,000 seeds per acre.
a. Calculate the final emerged plant population in plants per acre.
b. Calculate the percent emergence of the planted seeds. - ANSa. 14,375 plants/acre
b. 60%
A crop consultant is evaluating an emergence problem in sunflowers. They find an
average of 30 seedlings emerged in 50 foot sections of row. The row width is two foot.
The farmer planted 22,000 seeds per acre. Calculate the final emerged plant population
in plants per acre and determine the percent emergence of the planted seeds. -
ANS13,068 plants/acre
59.4%
A crop planted to protect the soil from erosion, add nitrogen to the soil (if a legume is
used), and "trap" nutrients to reduce losses during the time between two crop seasons
is called a: - ANScover crop
A crop planted to protect the soil from erosion, add nitrogen to the soil (if a legume is
used), and "trap" nutrients to reduce losses during the time between two crop seasons
is called a: - ANScover crop
A crop planted to protect the soil from erosion, add nitrogen to the soil (if a legume is
used), and "trap" nutrients to reduce losses during the time between two crop seasons
is called a: - ANScover crop
A farmer delivers a truck load of wheat to the elevator that weighs 12.6 tons. The wheat
tests 12.5% moisture and has a measured test weight of 61.5 pounds per bushel. She
sells the wheat for $5.00 per bushel. What is the total amount of her payment check? -
ANS$2100.00
A farmer is going to plant his wheat at a rate of one and one half bushels per acre. They
have a field that measures one fourth of a mile wide by one half of a mile long. How
many bushels of seed will he need to purchase? - ANS120 bushels
A farmer is selecting flat fan spray nozzles to spray weeds. Which of the following
numbers on the nozzle tip would have the highest nozzle delivery rate in gallons per
minute at standard pressure?
a. 8004
b. 8001
c. 9503
, d. 11002
e. 11003 - ANSa. 8004
A farmer wants to spray Weed-B-Done 25 WDG (25% a.i. water dispersible granules)
herbicide. He has a 400 gal spray tank calibrated to spray at 20 gallons per acre (GPA).
a. If the label recommends 3 pounds Weed-B-Done per acre, how much should be
added to one tankful?
b. If we use 3 pounds of Weed-B-Done per acre and the product costs $2 per pound of
active ingredient, how much does this treatment cost per acre? - ANSa. 60.0 lbs WBD/
tank
b. $1.50/ac
A fescue seed tag reads: Germination = 80%, Purity = 90% (Weed seed = 2%, Other
crop seed = 5%, Inert material = 3%).
a. Calculate the percent pure live seed (%PLS).
b. A 50-pound bag costs $43.20 at the local feed store. Calculate the cost per pound of
pure live seed (PLS). - ANSa. 72% PLS
b. $1.20 / pound PLS
A grass seed bag has the following information on the label: 92% germination, 2% weed
seed, 1.2% inert, 93% purity, 50 lbs net weight, and 375,000 seeds per pound. What is
the % PLS? - ANS86%
A harvest concern with regard to corn seed infected with Aspergillus flavus ear rot
disease is the potential presence of toxic levels of: - ANSaflatoxin
A harvest concern with regard to moldy corn seed is the potential presence of toxic
levels of: - ANSaflatoxin
A harvest concern with regard to wheat seed infected with scab disease is the potential
presence of toxic levels of: - ANSvomitoxin
A herbicide applied after planting, but before crop emergence is termed: -
ANSpremerge
A herbicide like "Roundup" that is taken up and translocated throughout the plant is
called: - ANSsystemic
A horizontal creeping stem growing above the soil surface that roots down at the nodes,
such as found in buffalograss and white clover, is called a: - ANSstolon
A horizontal stem growing below the soil surface is a: - ANSrhizome
2024-2025.
"Roundup Ready" varieties of this forage crop have recently been deregulated and it
can now be planted again - a lawsuit led to its withdrawal after it had already been
released several years ago. This crop is: - ANSalfalfa
A common disease of wheat is leaf rust, which is caused by a fungus that does not
survive over winter in Kansas. However, the leaf rust spores blow in from the Southern
states each spring to infect our wheat crop. In this example, the wind is called the: -
ANSvector
A common disease of wheat is streak mosaic, which is caused by a virus that is
transferred from volunteer plants to newly planted seedlings by the wheat curl mite. In
this example, the wheat curl mite is called the: - ANSvector
A concern with regard to moldy corn at harvest is the potential presence of toxic levels
of: - ANSaflatoxin
A corn hybrid named Producers 5624VT3 contains YieldGard VT Triple technology,
which means that it has genetically engineered genes for resistance to:
a. Roundup herbicide
b. corn borers
c. corn rootworms
d. all of the abov - ANSd. all of the above
A crop consultant is calibrating a planter for sunflowers. He finds an average of 25
seeds dropped per 20 foot of row by one planter unit. The machine has 30-inch row
spacing. What is the seeding rate in seeds per acre? - ANS21,780.0 seeds/ac
A crop consultant is calibrating a row crop planter. He finds an average of 82 seeds
dropped per 50 foot of travel by one planter unit. The planter has 30-inch row spacing.
What is the seeding rate in seeds per acre? - ANS28,575 seeds/acre
A crop consultant is counting corn stands. He finds an average of 34 plants per 20 foot
length of row. The corn is planted in 30-inch rows. What is the plant population in plants
per acre? - ANS29,620 plants/acre
A crop consultant is evaluating an emergence problem in soybeans. He finds an
average of 95 seedlings emerged in 40-foot sections of row. The row width is 15-inches.
The farmer planted 140,000 seeds per acre.
a. Calculate the final emerged plant population in plants per acre.
,b. Calculate the percent emergence of the planted seeds. - ANSa. 82,764 plants/acre
b. 59% emergence
A crop consultant is evaluating an emergence problem in sunflowers. She finds an
average of 33 seedlings emerged in 50-foot sections of row. The row width is 24-inches.
The farmer planted 24,000 seeds per acre.
a. Calculate the final emerged plant population in plants per acre.
b. Calculate the percent emergence of the planted seeds. - ANSa. 14,375 plants/acre
b. 60%
A crop consultant is evaluating an emergence problem in sunflowers. They find an
average of 30 seedlings emerged in 50 foot sections of row. The row width is two foot.
The farmer planted 22,000 seeds per acre. Calculate the final emerged plant population
in plants per acre and determine the percent emergence of the planted seeds. -
ANS13,068 plants/acre
59.4%
A crop planted to protect the soil from erosion, add nitrogen to the soil (if a legume is
used), and "trap" nutrients to reduce losses during the time between two crop seasons
is called a: - ANScover crop
A crop planted to protect the soil from erosion, add nitrogen to the soil (if a legume is
used), and "trap" nutrients to reduce losses during the time between two crop seasons
is called a: - ANScover crop
A crop planted to protect the soil from erosion, add nitrogen to the soil (if a legume is
used), and "trap" nutrients to reduce losses during the time between two crop seasons
is called a: - ANScover crop
A farmer delivers a truck load of wheat to the elevator that weighs 12.6 tons. The wheat
tests 12.5% moisture and has a measured test weight of 61.5 pounds per bushel. She
sells the wheat for $5.00 per bushel. What is the total amount of her payment check? -
ANS$2100.00
A farmer is going to plant his wheat at a rate of one and one half bushels per acre. They
have a field that measures one fourth of a mile wide by one half of a mile long. How
many bushels of seed will he need to purchase? - ANS120 bushels
A farmer is selecting flat fan spray nozzles to spray weeds. Which of the following
numbers on the nozzle tip would have the highest nozzle delivery rate in gallons per
minute at standard pressure?
a. 8004
b. 8001
c. 9503
, d. 11002
e. 11003 - ANSa. 8004
A farmer wants to spray Weed-B-Done 25 WDG (25% a.i. water dispersible granules)
herbicide. He has a 400 gal spray tank calibrated to spray at 20 gallons per acre (GPA).
a. If the label recommends 3 pounds Weed-B-Done per acre, how much should be
added to one tankful?
b. If we use 3 pounds of Weed-B-Done per acre and the product costs $2 per pound of
active ingredient, how much does this treatment cost per acre? - ANSa. 60.0 lbs WBD/
tank
b. $1.50/ac
A fescue seed tag reads: Germination = 80%, Purity = 90% (Weed seed = 2%, Other
crop seed = 5%, Inert material = 3%).
a. Calculate the percent pure live seed (%PLS).
b. A 50-pound bag costs $43.20 at the local feed store. Calculate the cost per pound of
pure live seed (PLS). - ANSa. 72% PLS
b. $1.20 / pound PLS
A grass seed bag has the following information on the label: 92% germination, 2% weed
seed, 1.2% inert, 93% purity, 50 lbs net weight, and 375,000 seeds per pound. What is
the % PLS? - ANS86%
A harvest concern with regard to corn seed infected with Aspergillus flavus ear rot
disease is the potential presence of toxic levels of: - ANSaflatoxin
A harvest concern with regard to moldy corn seed is the potential presence of toxic
levels of: - ANSaflatoxin
A harvest concern with regard to wheat seed infected with scab disease is the potential
presence of toxic levels of: - ANSvomitoxin
A herbicide applied after planting, but before crop emergence is termed: -
ANSpremerge
A herbicide like "Roundup" that is taken up and translocated throughout the plant is
called: - ANSsystemic
A horizontal creeping stem growing above the soil surface that roots down at the nodes,
such as found in buffalograss and white clover, is called a: - ANSstolon
A horizontal stem growing below the soil surface is a: - ANSrhizome
